# FDR Biography vs Constitution Copilot

The clearest difference is update cadence: Constitution Copilot at every 2 months against FDR Biography's every 24 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. FDR Biography sells 1 one-off in-app purchase and Constitution Copilot sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

FDR Biography ships an update every 24 months, Constitution Copilot every 2 months. The most recent releases landed on October 8, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | FDR Biography | Constitution Copilot |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 2 months** |
| Size | 1000 MB | 2 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Historycentral.com](https://appshunter.io/developer/1744330560) | [Carlos Reyes](https://appshunter.io/developer/1875715370) |

## What reviewers say

### FDR Biography

[App page](https://appshunter.io/ios/app/fdr-biography/id721627950)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FDR Professionl | $1.99 | one-time |


### Constitution Copilot

[App page](https://appshunter.io/ios/app/constitution-copilot/id6761391729)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Constitution Pro Monthly | $9.99 | per month |
| Constitution Pro Annual | $49.99 | per year |


## Frequently asked questions

### Is FDR Biography free?

FDR Biography is free to download, with in-app purchases available.

### Is Constitution Copilot free?

Constitution Copilot is free to download, with in-app purchases available.

### Do FDR Biography or Constitution Copilot have ads?

Neither FDR Biography nor Constitution Copilot shows ads.

### Which is updated more often, FDR Biography or Constitution Copilot?

FDR Biography ships an update every 24 months, and Constitution Copilot every 2 months. Most recently, FDR Biography was updated on October 8, 2026 and Constitution Copilot on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*